epicyon/newsdaemon.py

176 lines
6.0 KiB
Python

__filename__ = "newsdaemon.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "1.1.0"
__maintainer__ = "Bob Mottram"
__email__ = "bob@freedombone.net"
__status__ = "Production"
import os
import time
from collections import OrderedDict
from newswire import getDictFromNewswire
from posts import createNewsPost
from utils import saveJson
from utils import getStatusNumber
def updateFeedsIndex(baseDir: str, domain: str, postId: str) -> None:
"""Updates the index used for imported RSS feeds
"""
basePath = baseDir + '/accounts/news@' + domain
indexFilename = basePath + '/outbox.index'
if os.path.isfile(indexFilename):
if postId not in open(indexFilename).read():
try:
with open(indexFilename, 'r+') as feedsFile:
content = feedsFile.read()
feedsFile.seek(0, 0)
feedsFile.write(postId + '\n' + content)
print('DEBUG: feeds post added to index')
except Exception as e:
print('WARN: Failed to write entry to feeds posts index ' +
indexFilename + ' ' + str(e))
else:
feedsFile = open(indexFilename, 'w+')
if feedsFile:
feedsFile.write(postId + '\n')
feedsFile.close()
def convertRSStoActivityPub(baseDir: str, httpPrefix: str,
domain: str, port: int,
newswire: {},
translate: {}) -> None:
"""Converts rss items in a newswire into posts
"""
basePath = baseDir + '/accounts/news@' + domain + '/outbox'
if not os.path.isdir(basePath):
os.mkdir(basePath)
newswireReverse = \
OrderedDict(sorted(newswire.items(), reverse=False))
for dateStr, item in newswireReverse.items():
originalDateStr = dateStr
# convert the date to the format used by ActivityPub
dateStr = dateStr.replace(' ', 'T')
dateStr = dateStr.replace('+00:00', 'Z')
statusNumber, published = getStatusNumber(dateStr)
newPostId = \
httpPrefix + '://' + domain + \
'/users/news/statuses/' + statusNumber
# file where the post is stored
filename = basePath + '/' + newPostId.replace('/', '#') + '.json'
if os.path.isfile(filename):
# if a local post exists as html then change the link
# to the local one
htmlFilename = \
baseDir + '/accounts/news@' + domain + \
'/postcache/' + newPostId.replace('/', '#') + '.html'
if os.path.isfile(htmlFilename):
newswire[originalDateStr][1] = '/@news/' + statusNumber
# don't create the post if it already exists
continue
rssTitle = item[0]
url = item[1]
rssDescription = ''
# get the rss description if it exists
if len(item) >= 5:
rssDescription = item[4]
# add the off-site link to the description
if rssDescription:
rssDescription += \
'\n\n' + translate['Read more...'] + '\n' + url
else:
rssDescription = url
followersOnly = False
useBlurhash = False
blog = createNewsPost(baseDir,
domain, port, httpPrefix,
rssDescription, followersOnly, False,
None, None, None, useBlurhash,
rssTitle)
if not blog:
continue
idStr = \
httpPrefix + '://' + domain + '/users/news' + \
'/statuses/' + statusNumber + '/replies'
blog['news'] = True
blog['object']['replies']['id'] = idStr
blog['object']['replies']['first']['partOf'] = idStr
blog['id'] = newPostId + '/activity'
blog['object']['id'] = newPostId
blog['object']['atomUri'] = newPostId
blog['object']['url'] = \
httpPrefix + '://' + domain + '/@news/' + statusNumber
blog['object']['published'] = dateStr
postId = newPostId.replace('/', '#')
# save the post and update the index
if saveJson(blog, filename):
updateFeedsIndex(baseDir, domain, postId + '.json')
newswire[originalDateStr][1] = '/@news/' + statusNumber
def runNewswireDaemon(baseDir: str, httpd,
httpPrefix: str, domain: str, port: int,
translate: {}) -> None:
"""Periodically updates RSS feeds
"""
# initial sleep to allow the system to start up
time.sleep(50)
while True:
# has the session been created yet?
if not httpd.session:
print('Newswire daemon waiting for session')
time.sleep(60)
continue
# try to update the feeds
newNewswire = None
try:
newNewswire = getDictFromNewswire(httpd.session, baseDir)
except Exception as e:
print('WARN: unable to update newswire ' + str(e))
time.sleep(120)
continue
httpd.newswire = newNewswire
print('Newswire updated')
convertRSStoActivityPub(baseDir,
httpPrefix, domain, port,
newNewswire, translate)
print('Newswire feed converted to ActivityPub')
# wait a while before the next feeds update
time.sleep(1200)
def runNewswireWatchdog(projectVersion: str, httpd) -> None:
"""This tries to keep the newswire update thread running even if it dies
"""
print('Starting newswire watchdog')
newswireOriginal = \
httpd.thrPostSchedule.clone(runNewswireDaemon)
httpd.thrNewswireDaemon.start()
while True:
time.sleep(50)
if not httpd.thrNewswireDaemon.isAlive():
httpd.thrNewswireDaemon.kill()
httpd.thrNewswireDaemon = \
newswireOriginal.clone(runNewswireDaemon)
httpd.thrNewswireDaemon.start()
print('Restarting newswire daemon...')